Meanwhile, Us Weekly is reporting that Holmes has sought out support from another famous source, and someone familiar with the ins and outs of divorcing Cruise -- Nicole Kidman.

The jury is still out on whether either of these reports are true, but Holmes certainly wouldn't be the first celeb to lean on a famous friend during divorce. Click through the trivia slideshow below to test your knowledge of famous, divorce-withstanding friendships -- from the real-life "Friends" who have taken on breakups together, to the long-time friend who stood beside Kidman on the red carpet when she divorced Tom.

After filing for divorce from Tony Parker in November 2010, Eva Longoria returned to the "Desperate Housewives" set. "Everyone is being very sympathetic to Eva's situation," an on-set source told People at the time. "Work has to go on -- but the whole set is very protective of Eva."
Marcia Cross and Felicity Huffman were especially protective of Eva, who split from Parker after reports of his infidelity emerged. "I'm really close with Felicity [Huffman] and Marcia [Cross]," Longoria told "Access Hollywood" in April 2011. "We live near each other and we just kind of see each other a lot more and they've been amazingly supportive through this whole thing that I've been through so we are friends outside of the show."

a) Ewan McGregor
b) Naomi Watts
c) Hugh Jackman
d) Thandie Newton

Just days before Nicole Kidman and Tom Cruise announced their split, Kidman walked the red carpet for the U.S. premiere of "The Others," sans Cruise (the mega star arrived after his soon-to-be-ex wife was seated.)
But she didn't do it alone. Longtime friend Naomi Watts lent some support as the bulbs flashed, walking hand-in-hand with Kidman at the premiere.
Kidman commented on the supportive friendship in a February 2002 "Newsweek" Oscar roundtable featuring the the two women. "This is not that kind of friendship where it's like, 'Oh, yeah, we were friends,'" she explained. "We've shared boyfriends, breakups, bottles of wine when we thought our lives were over. I mean, every single thing you can imagine. She moved into my house when I got divorced and took care of me."

It's a friendship that would do Monica and Rachel proud. Cox, who was reportedly supportive of Jennifer Aniston during her 2005 divorce from Brad Pitt, leaned on Aniston when she announced her separation from David Arquette in October 2010.
"It's funny, a lot of really close friends are kind of going through this right now or like Jennifer [who] has gone through it," Cox told US Weekly shortly after the announcement. "I don't know what's going on in the planets or what, but things are being shaken up and I don't know what's going to happen, but, yeah, Jennifer has been amazing for sure."
When the holidays came around, the pair reportedly spent Christmas Eve together with Cox's daughter, Coco Arquette.

a) Ryan Reynolds
b) Heidi Klum
c) Keanu Reeves
d) George Lopez

George Lopez, who was discovered by Sandra Bullock (whom he calls his "fairy godmother") in 2000, visited Bullock's home multiple times after Jesse James' infidelity came to light in March 2010.
"She knows how much I care about her," Lopez told E!'s "Daily 10" in April 2010, the same month Bullock filed to divorce James. "And, you know, when times are tough, friends step up."

a) Julia Roberts
b) Rosie O'Donnell
c) Gayle King
d) Maria Shriver

In an August 2006 "O, The Oprah Magazine" interview, Gayle King was shocked to learn that Oprah, her maid of honor at her 1983 wedding to William Bumpus, knew the marriage wouldn't work out. "It just felt kind of pitiful. I never told you because it wasn't my place to say that," Oprah said, adding "maybe it's just me being jealous."
But Oprah's bestie intuition was right; King and Bumpus would go on to divorce in 1993 due to his infidelity, King said on her XM Satellite radio show in February 2009.
Oprah also commended King's co-parenting with Bumpus in the interview. "I love the way she understood that though the marriage was not going to work, her husband still needed to have a space to maintain a strong relationship with these kids," she said. "That takes a real woman. It's always, always, always been about what's best for her children.